Piedmont Weather Forecast

    • 58
    • 73

    Increasing Clouds

    • 54
    • 65

    Rain

    • 52
    • 64

    Rain Showers

    • 53
    • 68

    Chance Rain

    • 54
    • 72

    Chance Rain

    • 56
    • 73

    Chance Rain

Today 1 Sep Inner Portland Metro

Mostly cloudy this Morning, then becoming partly sunny. Highs in the mid 70s. Southwest wind 5 to 10 Mph.

Tonight 1 Sep Inner Portland Metro

Mostly cloudy. Lows in the upper 50s. Southwest wind 5 to 10 Mph.

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Piedmont Temperature Statistics

September Temperature

Portland, Portland International Airport (3.1 miles)

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  • Average September

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Climate (2021–2026)

Portland, Portland International Airport (3.1 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.5 °F
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